September 1982 Chemipro Kasei Kaisha, Ltd. was established in Kobe to manufacture and sell organic and industrial chemicals.
November 1982 ISC Chemical Co., Ltd. was established as a joint venture company between Ishihara Sangyo Kaisha, Ltd. and Seika Sangyo Co., Ltd. to manufacture UV absorbers.
February 1985 Takeuchi CP Kagaku Kaisha, Ltd. was established as a joint venture company with Takeuchi Mitsuji Shoten to manufacture UV absorbers.
May 1987 Chemipro Fine Chemical Kaisha, Ltd. was established to manufacture UV absorbers.
August 1989 Chemipro Intermediate Kaisha, Ltd. was established to manufacture nitroaniline (intermediate for UV absorbers) and para-Cresidine.
October 1991 Absorbed Takeuchi CP Kagaku Kaisha, Ltd. for higher business efficiency (currently Himeji Plant).
October 1992 Absorbed Chemipro Kosan and Chemipro Intermediate Kaisha, Ltd. for higher business efficiency (currently Aioi Plant).
Absorbed Chemipro Sangyo Co., Ltd. and transferred its operation to the Purchasing department.
June 1994 Obtained the international quality assurance standard ISO 9002 Certification.
August 1995 Listed on the over-the-counter market.
August 1996 To expand our business, ISC Chemical Co., Ltd. became a 100% owned subsidiary.
August 1997 Absorbed ISC Chemical Co., Ltd. for higher business efficiency (currently Akashi Plant).
November 1997 Absorbed Toyo Wood Preservative Co., Ltd. for business diversification and stability (currently Household Products Division).
September 1998 Listed on the Second Section of the Osaka Securities Exchange.
January 1999 Obtained the environmental management system ISO 14001 Certification.
May 2007 Fukushima Research Laboratory was constructed in Takinemachi, Tamura-city in Fukushima Prefecture to expand our business.
December 2007 Absorbed Chemipro Fine Chemical Kaisha, Ltd. for higher productivity (currently Aioi Plant).